Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
140024goodexcellent41excellent
130031goodexcellent61excellent
120033goodexcellent61excellent
110030goodexcellent51excellent
100042goodexcellent91excellent
090097lightly pollutedexcellent201excellent
0800153heavily pollutedgood291excellent
0700176heavily pollutedgood291excellent
0600117moderately pollutedgood211excellent
050094lightly pollutedexcellent172excellent
040096lightly pollutedexcellent161excellent
030088lightly pollutedexcellent172excellent
020084lightly pollutedexcellent141excellent
010083lightly pollutedexcellent151excellent
000082lightly pollutedexcellent151excellent
230086lightly pollutedexcellent141excellent
220085lightly pollutedexcellent151excellent
210083lightly pollutedexcellent151excellent
200066lightly pollutedexcellent111excellent
190047goodexcellent71excellent
180030goodexcellent51excellent
170023goodexcellent41excellent
160020excellentexcellent31excellent
150020excellentexcellent41excellent